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Separation of metal ions using a polymeric reversed-phase column and a Methylthymol Blue containing mobile phase

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Paull, B, Nurdin, M, Haddad, PR and Nesterenko, PN 1998 , 'Separation of metal ions using a polymeric reversed-phase column and a Methylthymol Blue containing mobile phase' , Analytical Communications, vol. 35, no. 1 , pp. 17-20 , doi: 10.1039/a708203g.

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Abstract

A polystyrene–divinylbenzene reversed-phase column has been used in conjunction with a mobile phase containing methylthymol blue for the separation and visible detection of Mn2+, Zn2+, Cd2+ and Pb2+ in the presence of excess concentrations of matrix metals. Retention is due to the formation of a dynamically coated chelating stationary phase and is dependent upon mobile phase pH and ligand concentration. The method showed a different selectivity when compared to a pre-coated Methylthymol Blue chelating column and offers improved separation efficiency. Detection limits for Zn2+ and Pb2+ of 1 µM were achieved in solutions containing up to 1 M NaCl, following the post-column addition of a pH 5.9 buffer.

Item Type: Article
Authors/Creators:Paull, B and Nurdin, M and Haddad, PR and Nesterenko, PN
Journal or Publication Title: Analytical Communications
ISSN: 1359-7337
DOI / ID Number: 10.1039/a708203g
Additional Information:

© 1998 Royal Society of Chemistry

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